xref: /minix3/sys/lib/libz/zalloc.c (revision 7f2d47d84ca758d43a9bd9c1a1fefc2c1bcb3375)
1*7f2d47d8SEvgeniy Ivanov /* $NetBSD: zalloc.c,v 1.7 2009/03/18 16:00:21 cegger Exp $ */
2*7f2d47d8SEvgeniy Ivanov 
3*7f2d47d8SEvgeniy Ivanov /*-
4*7f2d47d8SEvgeniy Ivanov  * Copyright (c) 1999 The NetBSD Foundation, Inc.
5*7f2d47d8SEvgeniy Ivanov  * All rights reserved.
6*7f2d47d8SEvgeniy Ivanov  *
7*7f2d47d8SEvgeniy Ivanov  * This code is derived from software contributed to The NetBSD Foundation
8*7f2d47d8SEvgeniy Ivanov  * by Simon Burge.
9*7f2d47d8SEvgeniy Ivanov  *
10*7f2d47d8SEvgeniy Ivanov  * Redistribution and use in source and binary forms, with or without
11*7f2d47d8SEvgeniy Ivanov  * modification, are permitted provided that the following conditions
12*7f2d47d8SEvgeniy Ivanov  * are met:
13*7f2d47d8SEvgeniy Ivanov  * 1. Redistributions of source code must retain the above copyright
14*7f2d47d8SEvgeniy Ivanov  *    notice, this list of conditions and the following disclaimer.
15*7f2d47d8SEvgeniy Ivanov  * 2. Redistributions in binary form must reproduce the above copyright
16*7f2d47d8SEvgeniy Ivanov  *    notice, this list of conditions and the following disclaimer in the
17*7f2d47d8SEvgeniy Ivanov  *    documentation and/or other materials provided with the distribution.
18*7f2d47d8SEvgeniy Ivanov  *
19*7f2d47d8SEvgeniy Ivanov  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*7f2d47d8SEvgeniy Ivanov  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*7f2d47d8SEvgeniy Ivanov  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*7f2d47d8SEvgeniy Ivanov  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*7f2d47d8SEvgeniy Ivanov  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*7f2d47d8SEvgeniy Ivanov  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*7f2d47d8SEvgeniy Ivanov  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*7f2d47d8SEvgeniy Ivanov  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*7f2d47d8SEvgeniy Ivanov  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*7f2d47d8SEvgeniy Ivanov  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*7f2d47d8SEvgeniy Ivanov  * POSSIBILITY OF SUCH DAMAGE.
30*7f2d47d8SEvgeniy Ivanov  */
31*7f2d47d8SEvgeniy Ivanov 
32*7f2d47d8SEvgeniy Ivanov 
33*7f2d47d8SEvgeniy Ivanov #include "zutil.h"
34*7f2d47d8SEvgeniy Ivanov #include <lib/libsa/stand.h>
35*7f2d47d8SEvgeniy Ivanov 
36*7f2d47d8SEvgeniy Ivanov /*
37*7f2d47d8SEvgeniy Ivanov  * A simple implementation of zcalloc and zcfree in terms of the libsa
38*7f2d47d8SEvgeniy Ivanov  * alloc and free.
39*7f2d47d8SEvgeniy Ivanov  */
40*7f2d47d8SEvgeniy Ivanov 
41*7f2d47d8SEvgeniy Ivanov voidpf
zcalloc(voidpf opaque,unsigned int items,unsigned int size)42*7f2d47d8SEvgeniy Ivanov zcalloc(voidpf opaque, unsigned int items, unsigned int size)
43*7f2d47d8SEvgeniy Ivanov {
44*7f2d47d8SEvgeniy Ivanov 	unsigned int totalsize;
45*7f2d47d8SEvgeniy Ivanov 
46*7f2d47d8SEvgeniy Ivanov 	totalsize = items * size;
47*7f2d47d8SEvgeniy Ivanov 	opaque = alloc(totalsize);
48*7f2d47d8SEvgeniy Ivanov 	if (opaque != NULL)
49*7f2d47d8SEvgeniy Ivanov 		memset(opaque, 0, totalsize);
50*7f2d47d8SEvgeniy Ivanov 	return opaque;
51*7f2d47d8SEvgeniy Ivanov }
52*7f2d47d8SEvgeniy Ivanov 
53*7f2d47d8SEvgeniy Ivanov void
zcfree(voidpf opaque,voidpf ptr)54*7f2d47d8SEvgeniy Ivanov zcfree(voidpf opaque, voidpf ptr)
55*7f2d47d8SEvgeniy Ivanov {
56*7f2d47d8SEvgeniy Ivanov 
57*7f2d47d8SEvgeniy Ivanov 	dealloc(ptr, 0);	/* XXX: size not known */
58*7f2d47d8SEvgeniy Ivanov }
59